Ducted air conditioning in Derry/Londonderry
Northern Ireland's mild, damp climate makes efficient heating and dehumidifying the main benefits for most homes. Ducted systems suit Derry/Londonderry loft conversions and new extensions where ceilings are being boarded anyway.
For a renovation in Derry/Londonderry, the best time to plan ducted cooling is before the plasterers arrive. As well as Derry/Londonderry itself, our County Londonderry coverage takes in Coleraine, Limavady and the towns around them. That includes the BT48 and BT47 postcode districts.
Prices in Derry/Londonderry
Our Northern Ireland guide price for ducted air conditioning is £4,995–£13,745 per system, VAT included. Labour rates in Northern Ireland keep this slightly under the national middle. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. Typical Zoned work (motorised dampers or two units for separate floors or room groups) lands around £6,845–£10,045 in this area.
Single zone
One ducted unit serving two or three rooms from a loft or void.
Zoned
Motorised dampers or two units for separate floors or room groups.
Whole home
Multiple ducted units with linear slot diffusers and smart control.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
Northern Ireland has its own planning rules for outdoor units, and conservation areas and listed buildings need particular care. We confirm the position for your property before installation.
The survey
A survey in Derry/Londonderry usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Every job in Derry/Londonderry includes:
- Insulated ductwork, plenums and grilles
- Access hatch and condensate route planned in
- Wall controller or app control
- Concealed fan unit and outdoor unit sized to the zone
- Commissioning with airflow balancing per grille
Nearby
Neighbouring places we cover include Strabane (14 miles), Limavady (15 miles) and Coleraine (27 miles). See all services in Derry/Londonderry or ducted air conditioning across County Londonderry.